Saurabh Sengar ea2f45ab0e fbdev: hyperv_fb: Allow graceful removal of framebuffer ... When a Hyper-V framebuffer device is unbind, hyperv_fb driver tries to release the framebuffer forcefully. If this framebuffer is in use it produce the following WARN and hence this framebuffer is never released. [ 44.111220] WARNING: CPU: 35 PID: 1882 at drivers/video/fbdev/core/fb_info.c:70 framebuffer_release+0x2c/0x40 < snip > [ 44.111289] Call Trace: [ 44.111290] <TASK> [ 44.111291] ? show_regs+0x6c/0x80 [ 44.111295] ? __warn+0x8d/0x150 [ 44.111298] ? framebuffer_release+0x2c/0x40 [ 44.111300] ? report_bug+0x182/0x1b0 [ 44.111303] ? handle_bug+0x6e/0xb0 [ 44.111306] ? exc_invalid_op+0x18/0x80 [ 44.111308] ? asm_exc_invalid_op+0x1b/0x20 [ 44.111311] ? framebuffer_release+0x2c/0x40 [ 44.111313] ? hvfb_remove+0x86/0xa0 [hyperv_fb] [ 44.111315] vmbus_remove+0x24/0x40 [hv_vmbus] [ 44.111323] device_remove+0x40/0x80 [ 44.111325] device_release_driver_internal+0x20b/0x270 [ 44.111327] ? bus_find_device+0xb3/0xf0 Fix this by moving the release of framebuffer and assosiated memory to fb_ops.fb_destroy function, so that framebuffer framework handles it gracefully. While we fix this, also replace manual registrations/unregistration of framebuffer with devm_register_framebuffer. Fixes: 68a2d20b79 ("drivers/video: add Hyper-V Synthetic Video Frame Buffer Driver") Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Link: https://lore.kernel.org/r/1740845791-19977-3-git-send-email-ssengar@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <1740845791-19977-3-git-send-email-ssengar@linux.microsoft.com>		2025-03-09 23:56:29 +00:00
..
aty	fbdev: radeon: Use const 'struct bin_attribute' callbacks	2024-12-22 07:03:42 +01:00
core	fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE	2024-12-17 18:06:10 +01:00
geode	…
i810	…
kyro	…
matrox	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
mb862xx	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
mmp	video: fbdev: mmp: switch to use spi_alloc_host()	2024-09-30 01:12:06 +02:00
nvidia	Backmerge v6.12-rc6 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next	2024-11-04 14:25:33 +10:00
omap	fbdev: omap: use threaded IRQ for LCD DMA	2025-01-09 00:37:54 +01:00
omap2	fbdev: omapfb: Use syscon_regmap_lookup_by_phandle_args	2025-01-12 18:12:35 +01:00
riva	fbdev: rivafb: Use backlight power constants	2024-09-30 16:35:40 +02:00
savage	…
sis	fbdev: sisfb: Fix strbuf array overflow	2024-09-28 00:42:11 +02:00
via	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
68328fb.c	…
Kconfig	fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE	2024-12-17 18:06:10 +01:00
Makefile	fbdev: da8xx: remove the driver	2024-10-15 10:08:23 +02:00
acornfb.c	…
acornfb.h	…
amifb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
arcfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
arkfb.c	…
asiliantfb.c	…
atafb.c	…
atafb.h	…
atafb_iplan2p2.c	…
atafb_iplan2p4.c	…
atafb_iplan2p8.c	…
atafb_mfb.c	…
atafb_utils.h	…
atmel_lcdfb.c	Backmerge v6.12-rc6 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next	2024-11-04 14:25:33 +10:00
au1100fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
au1100fb.h	…
au1200fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
au1200fb.h	…
broadsheetfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
bt431.h	…
bt455.h	…
bw2.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
c2p.h	…
c2p_core.h	…
c2p_iplan2.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
c2p_planar.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
carminefb.c	…
carminefb.h	…
carminefb_regs.h	…
cg3.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
cg6.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
cg14.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
chipsfb.c	fbdev: chipsfb: Use backlight power constants	2024-09-30 16:35:28 +02:00
cirrusfb.c	…
clps711x-fb.c	- Improved handling of LCD power states and interactions with the fbdev subsystem.	2024-11-22 16:29:57 -08:00
cobalt_lcdfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
controlfb.c	…
controlfb.h	…
cyber2000fb.c	…
cyber2000fb.h	…
dnfb.c	…
edid.h	…
efifb.c	fbdev: efifb: Change the return value type to void	2025-01-09 00:29:42 +01:00
ep93xx-fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
ffb.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
fm2fb.c	…
fsl-diu-fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
g364fb.c	…
gbefb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
goldfishfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
grvga.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
gxt4500.c	…
hecubafb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
hgafb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
hitfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
hpfb.c	fbdev: hpfb: Fix an error handling path in hpfb_dio_probe()	2024-08-30 18:42:38 +02:00
hyperv_fb.c	fbdev: hyperv_fb: Allow graceful removal of framebuffer	2025-03-09 23:56:29 +00:00
i740_reg.h	…
i740fb.c	…
imsttfb.c	fbdev: imsttfb: convert comma to semicolon	2024-09-02 13:54:26 +02:00
imxfb.c	- Improved handling of LCD power states and interactions with the fbdev subsystem.	2024-11-22 16:29:57 -08:00
leo.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
macfb.c	…
macmodes.c	…
macmodes.h	…
maxinefb.c	…
metronomefb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
n411.c	…
neofb.c	…
ocfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
offb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
p9100.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
platinumfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
platinumfb.h	…
pm2fb.c	…
pm3fb.c	…
pmag-aa-fb.c	…
pmag-ba-fb.c	…
pmagb-b-fb.c	…
ps3fb.c	…
pvr2fb.c	…
pxa3xx-gcu.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
pxa3xx-gcu.h	…
pxa3xx-regs.h	…
pxa168fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
pxa168fb.h	…
pxafb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
pxafb.h	…
q40fb.c	…
s1d13xxxfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
s3c-fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
s3fb.c	…
sa1100fb.c	…
sa1100fb.h	…
sbuslib.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
sbuslib.h	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
sh7760fb.c	fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()	2024-11-14 15:26:27 +01:00
sh_mobile_lcdcfb.c	fbdev: lcdcfb: Use backlight helper	2025-01-21 14:16:39 +01:00
sh_mobile_lcdcfb.h	…
simplefb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
skeletonfb.c	…
sm501fb.c	fbdev: sm501fb: Use str_enabled_disabled() helper in sm501fb_init_fb()	2025-01-12 18:10:01 +01:00
sm712.h	…
sm712fb.c	…
smscufx.c	…
ssd1307fb.c	…
sstfb.c	fbdev: sstfb: Make CONFIG_FB_DEVICE optional	2024-10-15 10:07:31 +02:00
stifb.c	…
sunxvr500.c	…
sunxvr1000.c	…
sunxvr2500.c	…
tcx.c	fbdev: Constify struct sbus_mmap_map	2024-10-15 10:07:32 +02:00
tdfxfb.c	…
tgafb.c	…
tridentfb.c	…
udlfb.c	fbdev: udlfb: Use const 'struct bin_attribute' callback	2024-12-22 07:03:42 +01:00
uvesafb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
valkyriefb.c	…
valkyriefb.h	…
vesafb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
vfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
vga16fb.c	fbdev: vga16fb: fix orig_video_isVGA confusion	2025-01-19 22:33:52 +01:00
vt8500lcdfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
vt8500lcdfb.h	…
vt8623fb.c	…
wm8505fb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
wm8505fb_regs.h	…
wmt_ge_rops.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00
wmt_ge_rops.h	…
xen-fbfront.c	fbdev: xen-fbfront: Assign fb_info->device	2024-09-11 07:58:18 +02:00
xilinxfb.c	fbdev: Switch back to struct platform_driver::remove()	2024-10-08 21:47:18 +02:00